On Tue, Jul 11, 2000 at 09:23:13AM -0700, [EMAIL PROTECTED] wrote:
> On Tue, Jul 11, 2000 at 04:10:05PM +0300, Theodor Milkov wrote:
> > Hello,
> >
> > I'm running qmail for a long time without any problems.
> > Now I should run qbiff for a couple of users, but
> > without success. Diging in the source I found this:
> >
> > if (!(st.st_mode & 0100)){
> > close (fdtty);
> > continue;
> > }
> >
> > I'm not a C programmer, so please tell me what this
> > means ? As far as I can read it, in st.st_mode is
> > stored mode of respective tty line. In my case this
>
> Correct. It's the obscurity of how certain commands,
> such as biff and mesg set/define access for other commands
> like qbiff, write, talk etc which want to write to your
> tty.
>
> You may want to look at the man pages for mesg to help
> understand what's going on, but essentially dmesg/biff
> set the mode bits and use group tty access to determine
> whether or not qbiff/write/talk can or should write something
> to your tty.
Hmm... looks like:
toto:~$ mesg
is y
toto:~$ ls -al `tty`
crw--w---- 1 zimage tty 3, 2 Jul 12 13:32 /dev/ttyp2
toto:~$ mesg n
toto:~$ mesg
is n
toto:~$ ls -al `tty`
crw------- 1 zimage tty 3, 2 Jul 12 13:32 /dev/ttyp2
toto:~$
mesg actualy changes the g+w bit to g-w (0620 -> 0600) and not
u+x bit (0620 -> 0720)...
> > is /dev/ttyp0 wich mode is 20620. (20620 & 0100) is
> > 0, so fdtty gets closed and qbiff doesn't send notify.
> > Is this mean, that in order to receive notifications
> > about incoming mails I must set all my tty's in
> > mode 700 ? Why ?
>
> I would think 0100 or '+x'.
>
>
> Regards.
But if tty is in 0100 mode, qbiff will be unable to open it
for writing ?
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Theodor Milkov Administrator IP Networks
Davidov Electric Ltd. Phone: +359 (2) 730158
PGP: http://www.zimage.delbg.com/zimage.pkr
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